Effect of fertilizer nitrate on soil environment
1999
Yaseen, M. (University of Agriculture, Faisalabad (Pakistan) Dept. of Soil Science) | Mahmood, T. | Asghar, H.N. | Ahmed, Z.
High yielding crops need the application of larger amounts of fertilizers, particularly nitrogen. This practice of nitrogen fertilization along with the greater amounts of water are potential threats to environmental quality. Regardless of any source of nitrogen fertilizer, the nitrate form predominates. Nitrate is highly mobile in soils and moves largely with soil water under excessive surface water supplies. High nitrate concentration in drainage and tap waters has health impact when its level exceeds 50 mg N/liter. An experiment was conducted where a gradually high doses of nitrogen fertilizer with varying levels of water applications were observed for nitrate distribution in the cropped soil matrix. Nitrate contents varied with fertilizer rates, water level, type of crop and soil depth. Most of the nitrogen was lost other than nitrate leaching. Probably it was through volatilization.
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